Centrosema virginianum is also known as the spurred butterfly pea, wild blue vine, bluebell, and wild pea. It’s in the family Fabaceae and is identified by its trailing and twining vine and showy flowers.

This unique wildflower offers more than just a splash of blue. Butterfly Pea’s petals have the intriguing ability to change color when exposed to acidic substances. It’s a natural wonder that can provide a fun, educational experience for gardeners of all ages.

It is a perennial herbaceous vine that grows face down or twines to a height of two meters. It has alternate pinnately divided leaves. The leaflets are lanceolate or ovate and grow up to 4 cm long.

Source: Wikipedia